Lyric discussion by lilavati 

Cover art for Brown Sugar lyrics by Rolling Stones, The

I think killingFloor makes a good point...it reminds me of some other Stones songs like "Jumpin' Jack Flash" or "Rocks Off" which may also be mainly drug-inspired, but are too ambiguous to tell for certain. Also...for what it's worth, I remember reading Entertainment Weekly describe the song as a "paradoxical bondage fantasy", which I can see too.